Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — 67 Meme Dark Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab with developer-controlled page enabling search monetization.
• Privacy policy is Google's generic policy — not scoped to this extension; admits data collection and 3rd-party sharing.
• Uninstall and install URL hijacking routes users to gameograf.com with UTM tracking on every install/uninstall.
• No content_security_policy (CSP) on MV3 extension with innerHTML sinks raises DOM-XSS risk.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; every new tab under developer control.
• uninstall_url_hijack crx setUninstallURL → https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=lofi&utm_medium=install
• generic_privacy_policy store Policy URL is Google's own account privacy page; scope_extension=false, data_collection=true, third_party_sharing=true.
• no_csp manifest content_security_policy is null; csp_present=false on MV3 extension with innerHTML sinks.
• dom_sink_innerhtml crx Two innerHTML assignments from variables in popup.js and calendar.js — DOM-XSS risk without CSP.
• missing_developer_name store developer_name is empty string; reduced accountability despite verified_publisher=true.
• newtab_monetization_shape manifest search permission + newtab override + install/uninstall URL hooks = monetization shell pattern.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — 67 Meme Dark Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.35 -> 7.85 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search provider; medium risk for a NewTab extension.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new tab page; primary vector for search monetization.

Pillar Scores

Bookkeeping